Lewis brown



EINTTE STATES PATENT QFFTQEQ LEWIS BRCHVN, OF LANDING, NE\V JERSEY, ASSIGNOH TO TliE AMERlCAN FORCITE POVDER MANUFAC'll'RING COVIAN Y, OF NEW YORh, N. Y.

AB SORBENT OF NlTRO-GLYCERINE.

SPECIFICATION forming part of Letters Patent No. 466,900, dated January 12, 1892.

Application filed September 5, 1891. Serial No. 404,885. No speeimensd To all whom it may concern: I

Be itknown that I, LEWIS BROWN, of Landing, in the county of Morris and State of New Jersey, have invented a new and useful Improvement in Mixtures Employed in the Manufacture of Nitro-Glyeerine Blasting-Powder, of which the following is a specification.

My invention relates to an improvement in mixtures employed in the man ufaeture of nitro-glycerine blasting-powder for the purpose of absorbing the nitro-glycerine and holding it in a condition to be incorporated in the grading and coating mixture which finally prepares it for marketand general-use. The grading and coating mixture which de 'termines the energy and quickness of the explosion and the protection of the grains from deterioration under the influence of the at-- xnosphere forms thesubject-matter of a separate application, Serial No. 404,886, filed 01' even date herewith.

The present applicationembraces only that mixture which is employed as an auxiliary ,in first securing the absorption of the nitroglyeerine in a granular mass, subject to f urther successful treatment. The formula for this auxiliary mixture. may be stated as follows: eighty parts,'by weight, of nitrate of soda; fourteen parts of wood pulp; five parts of glue; three parts of magnesia. These ingredients are 'thoroughly mixed, using sui'ficient water to makethc mixture homogeneous and assist the separation of the mass into grains. When thoroughly mixed, the massis screened and then dried to expel the water. The mi x lure will then be found to be in granular form and will readily absorb the nitroglyccsine, the latter taking the place of the expelled water.

\VhileI have found the proportions named to be the most satisfactory it is possible that variations therefrom might. prove more or less successful. I do not therefore wish to limit myself to the exact proportions named;

.but

What I claim is The mixture for the absorption of nitroglycerine, comprising in rate of soda, wood pulp, glue, and magnesia, combined in the proportions substantiallyas set forth.

LEW'IS BROWN.

Witnesses:

Flncnn'. llAYxics, GEORGE HARRY. 

